Gas-engine-valve timer.



UNHED STATES PATENT. orario Traumes :1"5 HuDEN, or Non'risr BNJ, OREGON.

1 Gas-ENGINE-VALVE Triana,

95o sus l Speciileation of Letters Patent.. Y {Patel-pied play 24:,:14910,

` Application inea Juntas; ioe. serial No. 504,980.

VTo all *it may concern:

B'e. it known that I, THOMASv P. HUDEN, a citizen ofthe United States,and a resident of North Bend', -in the county ot'Coos and 'State of Oreon, have invented certain newv and useful mprovements inGras-Enine-Valve Timers, of which the following is aV specification, l

My invention .is 4an improvement in gas.

engine valve timers and consists in certain novel constructions andcombinations of parts hereinafter described and claimed.`

, Referring to the drawings forming a part hereof, Figure 1 is a sideview of a p ortion 3-,-3 ofFig. 1 looking of an engine provided withthe" improvement.'- Fig. '2 is a plan view otone end of the lever. Eig.3 is a section .on the line in the direction of the arrow and Fig. '4 isan end view of the cam shaft. v

Y In the embodiment of the invention shown in fthe drawings the 4bearing1 which suports one end ofthe engine shaft 2 carry- Ing l the fly wheel3,"is provided near each ends, the plate bein end with air upright rodor bolt 4,'whichpasses through the bearing, and a cross plate 5 connectsthe rods at their upper secured in place by the nuts'6. The cam s aft-7for'operating the ush rod 8 of the valve stem, is journaled in a bearing9 on one of the rods 4, the bearing being splitl and secured on the postby bolts 10. A lever 11 is pivoted to the other rod as at 12, and uponthe said lef'er is movable a spring tooth 13, which is adapted to engagea toothed quadrant 14 secured to the cross plate* 5 as at 15. A link 16is lpivoted by one end as at 17 to the lever 11, and at its other endthe link is provided with a fork 18, in whose arms 19 are joui'iialedaplura-lity of shafts20, and a sleeve or arbor 21 encircles each shaftbetween the arms. Rollers 22, 23 24 and 25 are arranged on the shafts inoii'set or staggered relation with respect to each other, the firstroller 22 being between the arms and adjacent to one, the last roller 25being between tlie arnis and adjacent to the. other while tliefft'is`23and 24 are outside of the arms, one being outside ot the arm adjacent tothe roller 22 and thc other outside of the arm adjacent'to the roller Acovering plate 2G connects the arms at'the upper sides thereof, andextends across the said quadrant being space therebetween the saidcovering plate being integral with the p arms or secured thereto 1n anysuitable manner, and the u per surface thereof. is flattened asI at 27to orm is for the reverse with full compression and I the cani 32 is torthe reverse with partial compression.4 In operation, the engine which ispreferably provided with a compressedl air starting device, 'andlwiththe'usual sparking device,

.is started by the' said' compressed air device. The lever L1 isarranged in the veiti-.

cal posit-ion, with the tooth 12S-in en gement with the central notch ofthe qua rant, the provided "with tive notches. `When in this position',the lever 16 is in the neutral osition, and the cams will be entirelyout otP engagement with the rolleis. If it is desired to start in theforward' direction, the lever is moved to the right of Fig. 1, onenotch, which will bring theroller.

21 above the cam 29, and in position for engageinent thereby when thecam shaft is rotated. As the shaft is, rotated the cam 29 will engagethe roller 24 and raise the link 16, thus moving the push rod upward tooperate the valves. As the engine picks up speed, the' lever is movedinto the last notch to the right, which cuts ofi" the relief andoperates the engine under full compression. To reverse -the lever ismoved in theopposite direction.

It will be evidenti from the description t" that to reverse the engineit is necessary to1 move the lever to the neutral position,.be-`

fore it can be reversed.

It will beobserved from an inspection of Fig. 2, that the shafts 2,0.which carry the rollers 23 and 24 arc also pnovided between the armswith rollers 23 and'24, which are for the purpose of operating thevalves to open the exlia-ust'at every revolution 'o'fv the crank,tliisbeing necessary for the p'ropcr working of the engine whenstarting,

I claiinr 1. A device of the class described coinprising in combinationwit-h the valve op erating rod of the engine, of a cam shaft with aplurality of cams, a lever pivotcd adjacent to the engine, means forsecuring the lever in adjusted posltion, a link pivoted by one end tothe lever and provided at the other with a fork, shafts journaled in thearms of the fork and corresponding in number to the number of the camson the cam shaft, a roller on each shaft,vsaid rollers being arranged instaggered relation with respect to each other, and corresponding inposition to the position of the cams, said link having a surface abovethe rollers, the push rod having a roller moving on said surface, saidrollers being arranged in pairs, the airs being spaced apart from eachother or the purpose set forth.

2. A device of the class described, comprising in combination with thevalve operating red of the engine, a link having a plane surface uponwhich the rod rests, a

cam shaft, a plurality of cams thereon ar `ranged in spaced relation, aroller for engagement by each cam on the link, and arrangedlongitudinally thereof and in spaced relation,means for movin the linkWhereby ix) engage the rollers wlth the respective cam, and means forretaining the link in adjusted position.

3. A device of the class described, comprising in combination with theating'rod of the engine,' a link having a plane surface upon which therod rests, a cam shaft, a plurality of cams thereon arranged in spacedrelation, a roller for engagement by each cam on .the link, and arrangedlongitudinally thereof and in spaced relation and means for moving thelink whereby to engage the rollers with the respective cam.

LA device of the class described comprising in combination with thevalve operating-rod of the engine, of a link having a plane surface uponwhich the rod rests, a cam shaft, a plurality of cams thereon, rollerson the link corresponding in number and position to the number andposition of the cams, and-means for moving the links whereby to engagethe rollers with the respective cams.

THOMAS?. HUDEN. Witnesses:

G. J. LEMENSKI, JOHN Gnnvns.

valve oper-

